DNS Resolver

What is DNS Resolver? It is a system that converts a domain name into an IP address also acts as a middleman between client and DNS servers Main Components involved Client which requests the domain Recursive resolver which handles the query Root server which directs to TLD TLD server which points to authoritative server Authoritative server which gives final IP address Approach Step 1 User enters a domain name in browser Step 2 System checks local cache if IP already exists Step 3 If not found request goes to DNS resolver Step 4 Resolver checks its cache Step 5 If not found resolver contacts root server Step 6 Root server redirects to TLD server Step 7 TLD server redirects to authoritative server Step 8 Authoritative server returns the IP address Step 9 Resolver sends IP back to client Step 10 Client connects to the actual server Why this works??? Because DNS follows a hierarchical structure Each server has specific responsibility Resolver collects information step by step until IP is